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Finding the Fourth Proportional to 1,221,904.02, 1,834,196.85 and 970,798.62

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Solution

The fourth proportional to 1,221,904.02, 1,834,196.85 and 970,798.62 is: 1,457,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,904.02 : 1,834,196.85 = 970,798.62 : x
  2. Step 2: Convert to fraction form
    1,221,904.02/1,834,196.85 = 970,798.62/x
  3. Step 3: Cross multiply
    1,221,904.02x = 1,834,196.85 × 970,798.62
  4. Step 4: Simplify right side
    1,221,904.02x = 1,780,635,770,788.35
  5. Step 5: Solve for x
    x = 1,780,635,770,788.35/1,221,904.02
  6. Step 6: Final answer
    x = 1,457,263.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.